 /*******************************************************************************
  * Copyright (c) 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  ******************************************************************************/

 package org.eclipse.ui.internal;

 import org.eclipse.core.commands.Command;
 import org.eclipse.core.commands.ParameterizedCommand;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableItem;
 import org.eclipse.ui.IEditorReference;
 import org.eclipse.ui.IWorkbenchPartReference;
 import org.eclipse.ui.commands.ICommandService;

 /**
  * This handler is used to switch between parts using the keyboard.
  * <p>
  * Replacement for CyclePartAction
  * </p>
  *
  * @since 3.3
  *
  */
 public class CycleViewHandler extends CycleBaseHandler {

     /* (non-Javadoc)
      * @see org.eclipse.ui.internal.CycleBaseHandler#addItems(org.eclipse.swt.widgets.Table, org.eclipse.ui.internal.WorkbenchPage)
      */
     protected void addItems(Table table, WorkbenchPage page) {
         // TODO Auto-generated method stub
 IWorkbenchPartReference refs[] = page.getSortedParts();
         boolean includeEditor = true;

         for (int i = refs.length - 1; i >= 0; i--) {
             if (refs[i] instanceof IEditorReference) {
                 if (includeEditor) {
                     IEditorReference activeEditor = (IEditorReference) refs[i];
                     TableItem item = new TableItem(table, SWT.NONE);
                     item.setText(WorkbenchMessages.CyclePartAction_editor);
                     item.setImage(activeEditor.getTitleImage());
                     item.setData(activeEditor);
                     includeEditor = false;
                 }
             } else {
                 TableItem item = new TableItem(table, SWT.NONE);
                 item.setText(refs[i].getTitle());
                 item.setImage(refs[i].getTitleImage());
                 item.setData(refs[i]);
             }
         }
     }

     /* (non-Javadoc)
      * @see org.eclipse.ui.internal.CycleBaseHandler#getBackwardCommand()
      */
     protected ParameterizedCommand getBackwardCommand() {
         // TODO Auto-generated method stub
 final ICommandService commandService = (ICommandService) window.getWorkbench().getService(ICommandService.class);
         final Command command = commandService.getCommand("org.eclipse.ui.window.previousView"); //$NON-NLS-1$
 ParameterizedCommand commandBack = new ParameterizedCommand(command, null);
         return commandBack;
     }

     /* (non-Javadoc)
      * @see org.eclipse.ui.internal.CycleBaseHandler#getForwardCommand()
      */
     protected ParameterizedCommand getForwardCommand() {
         // TODO Auto-generated method stub
 final ICommandService commandService = (ICommandService) window.getWorkbench().getService(ICommandService.class);
         final Command command = commandService.getCommand("org.eclipse.ui.window.nextView"); //$NON-NLS-1$
 ParameterizedCommand commandF = new ParameterizedCommand(command, null);
         return commandF;
     }

     /* (non-Javadoc)
      * @see org.eclipse.ui.internal.CycleBaseHandler#getTableHeader()
      */
     protected String getTableHeader() {
         // TODO Auto-generated method stub
 return WorkbenchMessages.CyclePartAction_header;
     }

 }

